Add to ORKGR factor = 0.054; wR factor = 0.181; data-to-parameter ratio = 19.2. In the title molecule, C10H12O3, all non-H atoms lie in a common plane (r.m.s deviation = 0.010 Å). The molecular conformation is stabilized by an intramolecular O—H O hydrogen bond. Related literature For the biological activity of methylbenzene derivatives, see